Terrific review! Glad to see that these are near specifications and available for a great price. Always a thumbs up and looking forward to your next video!
Todd, so this is where you get your test results! Just foolin'.... keep up the awesome testing videos. I send people to your site all the time and I tell them to suscribe.
It’s important to keep in mind, though, that these might be factory rejects or something similar, and this particular lot might have turned good, or they might have worse specs (such as current rating) or degrade faster than normal. Further testing is needed to ascertain whether this is a good product.
Great to hear! Be sure to look over my extensive video playlists for many other videos of interest to you, and most importantly share links to my videos on social networking sites. Thanks ruclips.net/user/electronicsnmoreplaylists
Yeah I just built a 250w ebike kit on my channel And brought the cheapest 36v battery with good review turns out to be a good with capacity stated. Very good video as I am thinking about getting some of these to make a large long range pack.
Aliexpress is just a conduit like Ebay. The important thing is which supplier you're dealing with. Would be good to get a link to the supplier for these.
@@peetiegonzalez1845 go on aliexpress search 32700 or lifepo4 and most sold are these. From the item you can go to Litokalas main store and check their other batteries out. Idk if you wanted this but for anyone reading
I've bought LiitoKala Li-ion and LiFePO4 batteries from their official store on Aliexpress and so far I've been completely satisfied. Unlike some bargain Li-ion batteries I've bought elsewhere.
Yes! Finally an actual test on these batteries and not just some random subjective thoughts and assumptions on batteries only cause they were made in China (and BTW, product manufacturing has improved in the last 30 years in China). So thank you! And thank you for all the advice on charging levels
You're welcome! Be sure to check out my battery and solar video playlists below and share. Thanks ruclips.net/video/QjowLtMrlVI/видео.html ruclips.net/video/B16hHEaWwpI/видео.html
Thanks for sending me the link to this video. I was impressed and surprised to see how the capacity didn't change much from 1.5A to 3.0A draw. I see you became an affilicate of Aliexpress the next day. Congrats. These look like great batteries to build a bank for my scooter. However, the cost of shipping Lithium batteries to Canada is not something I'm willing obrosorbe at this time. Maybe when the world is back to normal again, the prices would come down by next spring or summer. Very informative video. ty.
@@electronicsNmore I went with what was written in the description at the time. Maybe I misread it. No matter, not important. Thanks for the video. I found it very informative.
So $4 each? That's pretty good considering the price. I might actually grab this for my ebike project later down the line. Anyway, thank you for your time to test the battery.
This is the first video I have seen of your channel, and between the top notch video with great information and the approval from project farm, you get a sub from me. Two fantastic reasons for a sub.
Great to hear! I have many videos that cover a wide range of subjects, so be sure to look over my extensive video playlists for many other videos of interest to you. Thanks
My only issue seems to be the rather insane shipping costs to Canada. I was going to buy until i saw that. I have some smaller LiFePO4’s from Hobby King that i like. The more constant voltage during the drain cycle is a nice feature.
I had free shipping. Yes. The power drops down fairly quickly, but around 3.2V, it stays very stable for a very long time. Once it dips below around 3.05-3.1v, then the cell begins to drop off faster and faster.
I've purchased numerous 32650/32700 cells from China and have found that when capacity is stated 6000mah it's usually a good deal and the cells are good and within specs. When advertised at double that capacity, you're going to get used cells that barely manage to test at 3000mah.
I have a JMT motorcycle battery built to fit a 2005 to 2013 BMW R1200. It weighs just 2 pounds against 8lbs for the lead acid. It has built in protection against over charge and over discharging. Capacity is just 4AH compared to the lead acid at 14AH. It sounds bad but the lead will only give significant current down to 30% discharge. The LiFePO4 can go to at least 95% before the safety circuit steps in. Cost for the JMT was £60 so comparable to a glass mat lead acid. The snag is LiFePO4 do not like working hard in below degs C. The good news is a heavy load quickly warms the battery and then it will keep going and going.
Let me tell you something as someone who has ordered a bunch off of aliexpress. These are fake and of bad quality. I had LiitoKala 18650's, both LiFePO4 and Li-ion ones. They will use fake batteries that have similar specs to original ones and while that may be fine for your low current applications like power banks if you draw higher currents they will malfunction, pose a fire threat and other interesting stuff. Also, these have decadent performance and will lose capacity and current ratings after use. And to make matters worse, there are tons of shops selling fake LiitoKala batteries, which are already fake. In my personal opinion LiitoKala's may be fine if you are experienced, as you are, and know how to pick out good ones but recommending these to someone who is a little less informed could result in bad experience or worse stuff. And to top it off, these come in different quality batches and so you may stumble onto decent quality second hand cells or you could get duds that are junk after 10 cycles.
I saw the Tesla model 3 batteries noted in the description. Are you aware of the design change in these where the heat ceiling is waaaay lower? Someone could easily cause a fire with these if they were using the same techniques as with previous cells. Not an issue in Tesla vehicles, as they have active cooling.
Please work on a sound loudness. Your sound is volume low, and when ads pop up, they shout as hell. That's why people rush to skip those ads. Good review.
I made my ebike battery whit theese. 37v 13ah 12s2p. I pull 25a out of it and it works really well. Going to make another one too for more power and range as my bike gets closer to moped.
Bought a couple 11-11 (nice discount), and some more later on. Not all arrived but I got my refund later on. These batteries are very good for solar projects, they can handle overcharge very well (up to 4 Volt would not really hurt), but I have a simple protection circuit against that (cutoff at 3.7 Volt). And LED's stop drawing current if the cell goes below 2.8 Volts or so, and thus wont hurt the battery as well. And self discharge is very low as well. And the cycles! Using the 7Ah batteries and only drawing 100 mA or so will make them outlive me. Currently I am charging them with the 'left over' solar power. This is the moment of the day where the solar cells are outputting a low current, too low to put back energy in the net. At that point I start charging an array of super capacitors up to 24 Volts, and those are then discharged in a decent LiFePO4 charger. I like these batteries as they do have a high (low) resistance, that makes charging them easier (compared to LiPo). There is so much to say here .. .. .. .. ..
I don't plan on using heavy loads with these when I use them. I'll be making a video showing a 12V battery pack for my large portable spotlight, and maybe use the others for my older Milwaukee cordless hammer drill. Thanks for watching!
@@ducimetierepatrick6336 I am impressed with the cells which I have (I bought a big set of used cells via ebay a year ago and am now using those). And since I recently bought a new laptop, I need even less current and so I need to think how I can use the 'left over' power for other purposes. But in winter times solar panels don't deliver much power, and I may need to switch to the original wall adapter. If you intent on investing in batteries. you should do a new research, since Lithium and other metals are getting more and more expensive. A standard car battery may be easier to setup and perform maintenance on and is possible cheaper to buy then LiFePO4 cells with a BMS and a balancer. In my case, I went for second hand. Currently I have 5 LiFEPO4 cells from 200AH 'to be used in a project', also second hand ones. 4 is optimal, the fifth one wil be used for USB output (5 Volt via a small boost circuit) for my radio which is on all day (my radio is an old IPOD, the best internet radio since it used the least amount of power I can find anywhere: 0.5 Wat only ! ! ). The radio can run all winter on 1 of those 200AH cells.
Thumbs Up. Well documented testing as usual. Thanks! Have you by any chance done a review or build on smart 120v AC switches? Looking for some inexpensive for one of my PCs to use with WOL that has external HDD docks connected which will turn on and off with booting and shutting down. Thanks!
@@electronicsNmore If you're familiar with Hi-Fi amps, they have straight thru's and switchable receptacles on the back for connecting components so that when you power the amp they come on and then off when the amp is turned off. The straight thru's are what they sound like, always on. I know these receptacles are made somewhere, but I haven't had any luck finding an mfg. who makes them. Real handy when doing remote computer work via WOL that have external components you want to power up & down when working on systems for example. There's a lot of wi-fi switches, but I can use or need that. It must be controlled by the PC when it powers up.
@@electronicsNmore Yes Sir. You know these guys I think. batteryhookup.com/collections/green-friday-weekend-deals/products/nissan-leaf-battery-module-gen-1
Thanks for doing those capacity and IR tests! Do you have any plans to test cells at their current ratings? A low-impedance cell like this would typically be used at a pretty high discharge current level and the temperature these cells reach when discharged at their claimed rating is quite important for determining if the rating is true or not.
no link to the actual cells? >_< In any case, thanks for doing this. Just ordered 12 cells for testing. But you really must work on giving proper links and get rid of those nasty annoying popups.
I told everyone where I got them. Why send one seller all the business? It makes no sense, especially since they're not doing anything for me in return. Just look for sellers with very high ratings.
@@electronicsNmore Why send the seller all the business when they do nothing for me! I don't mean to sound harsh, but it's not all about you. If I see that you are posting this to help others. Then if you found a good seller with legitimate cells, then why not help others. Isn't that what it's all about.
@Al My entire life I've helped people and gotten very little in return. I have many top rated DIY appliance/repair videos that saved millions of people a fortune, I even took the time to answer countless viewer questions which I didn't have to do. Guess how many people made small thank you donation to support my work over the years? Hint, it's only double digits. Sadly we live in a society where people "expect" other to do for them, instead realizing that what they did, they didn't have top do. I supplied enough information regarding the product. Buyer comments and satisfaction ratings should help you decide.
I'm looking into building one using their rectangular 50Ah batteries with the threaded posts, they look very promising since the rated output is a convenient 150A, and >2000 cycle lifespan. No welding required, now just gotta see if it'll fit in my frame.
In my experience the 36 and 42 volt 4.4-5.6ah hoverboard battery packs are excellent for projects, and can be had for as low as $25. After using them I would never screw around with individual cells
@@ProlificInvention You think the cells found in the hoverboard packs have high discharge capability and energy density....and have a great cycle life?
@@ProlificInvention don’t get me wrong, most of the cells used in hoverboard packs were decent but usually were the MH1 type cells. Good capacity, medium discharge, economy cells because the MJ1’s, GA’s and 35E’s were all new to the market and so weas the 21700 so they were pricey. Now you can get MJ1’s for $4 a cell or less in bulk, $5 for P42A’s and the 2600-2800mah cells are down to $1 new/0.50 cents used. They just won’t get the same cycle life. It’s almost like you don’t see LiFe04 cells degrade because it takes a full 5-8 years to lose 20% of their capacity so they can last a quarter of your life before they truly die. And taking them down to 0.7V a cell? No big deal as long as they don’t sit there for months. Downside is the energy density sucks so not practical for a personal EV
Watch my newest video, I perform high current tests on the same 32700 cells. You need to know your power requirements, and compare them to my test results. Thanks
Thank you, and you're welcome! Be sure to check out my extensive video playlists below, rate thumbs up, subscribe, and share the video link on social networking websites. ruclips.net/user/electronicsnmoreplaylists
Another awesome video! Do you take requests on batteries? I have some Orbtronic 18650 batteries that claim 3400 mah... it would be interesting to know how they stack up to the claim...... Backpackers use these for headlamps.... they seem to hang in pretty good......
Thank you so much for this review. I just bought 54 of these for my ebike. .5c is my intended discharge rate so this review was particularly relevant. I wonder why you did not test them at 5c?
I can only do so many tests in one video. 400mA / 1.5A / 3A was a good range. I plan on doing other tests. I take it you're going to have groups in parallel? Thanks for watching!
@@electronicsNmore Yes. 16s4p. I was thinking of trying to match internal resistance for cells in parallel. For example all the #1 cells would match but the #1 cells might not match the #2 cells. Hopefully similar cells would degrade in a similar fashion.
great video!!!....my understanding is LiFe batteries should NOT be charged at the standard and safe rate as LiPo's ( 1.5C ) ....but should be charged at at a much lower rate...example: I have been charging my LiFe PO4 1500mah at a charge rate of 1.5 amps ...is this incorrect and too high... what is the recommended charge rate formula a LiFe battery ?....thanks
It's always better to charge and discharge at a lower current rate if you're looking to maximize the life of the cell. Thanks for watching Gary! Be sure to rate thumbs up and share the video link.
@@electronicsNmore still a bit confused .....is there a general rule of thumb to follow for charging LiFe batteries....example, what would be a safe charging rate for a 2000mah LiFe battery be...thanks
Great review, after seeing the results of your test, will you be purchasing more of them or are you still a little unsure? Due to unknown longterm performance...
@@electronicsNmore If you record the audio with OBS, maybe requiring a stereo mic, you can adjust it low enough that you can't hear it in the output. Other studio recording software might have a similar noise cancelling feature.
Scooter more than likely OK, but for a motorcycle use 4S2P. Thanks for watching! Be sure to share the video link with others, and check out my wide range of videos for many other videos of interest to you. Thank you ruclips.net/video/sT-YqSyAcmE/видео.html
Lithium ion batteries are stored at 50%. When you buy them, you charge them fully before the first use. Yes, they were fully charged. Thanks for watching!
I wonder how these would do for making a 4S replacement sort-of hybrid car starting battery if combined with a balance board and some super caps helping with the initial needed surge? It still amazes me how well some of those little jump boxes work. Mine has saved my butt a couple times..
I have some cheap 18650 Westinghouse batteries. The Problem i found out with cheap Chinesium batteries is (iif you get the correct milliamp thats rated) they seem to die off after about seven or eight months and the resistance goes High
I wonder how an alternator on a car behaves on a battery like this. As I understand it would need some heating pads inside and a bms that wont try and charge the batteries when they are under 0 Celsius. I presume also it would need some timer, because even if the temp sensor says the pack is over 0c after some heating the insides of the batteries would not be at the correct temperature.
LiFePO4's work very well in cars, as long as a suitable BMS is used. The LiFePO4's typically don't like being charged sub zero temps, luckily I live in warm sunny Florida. :-)
Great video, I kinda even understand the point too. I would like to know how to make a battery to go in my van to run a 12 fridge and diesel heater. running amps is about 3 amps /hour each max. how does one build a battery for that usage, with depth of 3 days . I plan on hooking solar to charge in the future. 3ax24hrs=72 amps x3d=216 amps. That i understand, I don't understand how to take the battery and get the req 216.
You need to use a much larger battery, like the one shown in my other video below. Choose high capacity cells. Thanks for watching! ruclips.net/video/8YGoCSleaZU/видео.html
Only 1000 cycles? (the spec on the aliexpress link you provided) I thought LiFePO4's were supposed to typically provide at least 2x the charge/discharge cycles of Li-Ion cells? Is there some special factor in play with these cells?
I might have missed it, you said the voltage was low (slightly reading wrong) on the load, have you tested that load to see if in fact the amp draw is correct?
@@electronicsNmore You bought these and tested them so people want a link to the product so they know they're getting what you tested. So why don't you just publish the link in the video description instead of suggesting "a*n* Aliexpress seller that has a very high rating-s-"?
Hi Paul. It only adds another 100mA or so. Once it drops below 2.8v, the voltage decline really speeds up. Be sure to check out my extensive video playlists below for many other videos of interest to you, rate thumbs up, and share the video link on social networking websites. Thank you! ruclips.net/user/electronicsnmoreplaylists
Hey, these cells are available from lots of different Aliexpress stores. How can i know which are selling the 'real' ones like you tested? Can you say which store you bought from???
question is, can i do a direct swop say on an LED lantern or and USB FAN. Where it's connected to an 3.7v 18650 2500mah or 3000mah. then connect it to a 32650 with bms 5000mah? (excluding the physical size of 32650 is obviously bigger battery.. but charging and lifecycle and safety wize) can one do a direct swop. to get more capacity and longer lifetime for fan or LED lantern?. They both normally charge the internal battery from a 5V source via USB cable (micro usb or usb-c)
Nice video... I Would like to replace the 12Volt 26AH lead-acid 400cca battery in my watercraft with these batteries. I’m thinking I can get away with less capacity and get better performance... 4S x 4P will give me about 13V at about 26AH, correct? Can they handle the current? How about making a video on how to accomplish this? Would need the managment CB board that could handle the high cranking current... I thank many folks would be interest in a video on that subject...
Nice video. Do you know if LiFePO4 battery is safer than Li Ion? or about the same. I am trying to design battery bank for home use so safety is where I am stuck.
You keep confusing between Li-ion battery and LiFePo4 battery. Yours seems to be a LiFePo4 which charges to 3.6v max not 4.2v. Li-ion batteries such as 18650 can be charged to 4.2v max.
7Amps....I need it for powerwheels 6s 0r 18v there about. it's not bad $30 investment. if it works out...Use it in their faster toys :-P . Or even electric wheel chairs.You can run up to 36 volts through stock esc. I ran a used wheel chair I got for $35 on 8s lipo 50C ...32v...or more (4.2 x 8) Faster than STOCK 24 acid :-P 10s will work...it'll be cost effective...but mostly on Recharging time. lithuim are lighter....it's easier on the a wheel chair
But the most important thing is LiFePos DO NOT EXPLODE AND RARELY EVER CATCH FIRE when shorted. This is why they're incredible. Just under the punch of a LiPo, tons of cycles and safer than Trump's money.
Both the tsa.gov and faa.gov web sites say you are mistaken. Current rules allow up to 100 watts of any type of lithium chemistry in carry-on only, and with approval even more. Must not be in devices, but carried as batteries.
I purchased some slightly larger cells - 32700 12800mAh 3.2V with studded ends only to find I can't find a charger. Can I simply modify an 18650/18700 charger perhaps with short fly leads? I'd like to charge them one at a time i.e. one in use, one on charge.
Hi, i have miboxer c4 to and liitokala 32700. When i fully charged, it shows me approx capacity 5500mAh. I noticed that it charge mostly from 25%. Some battery started from 50% and at the end shows only 3300mAH, but voltage is normal 3.5V. Is that battery fail or miboxer shows strange numbers. How can i fully test if battery is trash?
How did you arrive at 70A? They're rated 6C max, which is around 40A, and have a 30A max continuous rating. I'll be performing higher current tests soon.
@@electronicsNmore Right at the start of your video the label is nicely visible and I can see "Lii-70A" Sorry I see that's a part number, the spec sheet is something else. 10C would be really nice but even a 6C discharge would be fun. The application I have (currently using LiPo) requires peak loads of about 200Amp@48V and continuous 150A. I'd like to have about 3kwh total on board so looking at 15s X 8P on these cells. If they hold up at continuous 30A that gives me plenty of power. 15s X 6P would even work but my run time would be shorter. Weight is a concern. 90 cells would be around 14 Kilos by the time I add wiring. That's a tad heavy. The mass energy density is less than LiPo of course. At $4.00USD a pop I'm looking at under $400! A very reasonable price for sure compared to the LiPos which are over twice that. These have a lot of other advantages over LiPos for sure. Have to decide now if I can carry 4 more kilos for the cost savings.
The only way to increase technology is to use tubing, instead of wire, for the positive hot. Wire works for negative ground. However, this system may take 1 hot and 2 ground, termed BioCurrent
@@victorreppeto7050 yes copper tubing. I have a 2" piece I spliced and crimped onto the positive lines for speakers, a couple inches away from the terminal. And NO! It doesn't! Wire restrict, the tubing acts as an in-line acid-free capacitor I'm no electrician so I can't properly test, but the electricity goes into the tubing, gets condensed, and projects
@@brendananderson324 much of what you say is gibberish. While skin affect for current is a real thing, it only presents an issue at higher frequencies. The audio spectrum isn't all that high to need special wires to deal with it. What happens at higher frequencies is the current starts to concentrate further and further to the surface of the conductor. At high current and high frequency this can present a problem as the center of the wire is not being used. Stranded wires have more surface than a solid wire and therefore in theory have higher current capability for the same gauge wire Litz wire was developed specifically for higher frequencies having individual strands insulated from each other This is all irrelevant for DC since it has a frequency of zero so the current flows throughout the whole conductor Edit: for typo
@@jasonharrison25 tubing still wins Edited* Although they have measure for how it flows with the braided flat wire of cable tv I don't know if it reaches the 5000% amplification of Tesla lore or not though *** If tubing condensed the electron, that would be an exotic state of electron
@@brendananderson324 once again gibberish. I can't even understand what you are trying to say other then "tubing is better" but don't write your statements and data in an legible manner. Ask any electronics or electrical engineer and they will likely say litz wire will win hands down. Tubing will likely only be better for high current where you can run coolant down it. Other then that it is no better then a similar gauge wire running the same current. But when running low frequencies or DC it will be worse then a solid or stranded conductor
![VENEZUELA vs. ARGENTINA [1-1] | RESUMEN | ELIMINATORIAS SUDAMERICANAS | FECHA 9](http://i.ytimg.com/vi/SJfoPdeOPCQ/mqdefault.jpg)
Terrific review! Glad to see that these are near specifications and available for a great price. Always a thumbs up and looking forward to your next video!
Glad you enjoyed it! Your latest video on cordless tool batteries was great. Thanks for watching!
I am glad to see these batteries and this video are both project farm approved. I look forward to future videos from both of you.
@@joeboxter3635 I posted a link in the video description area for all equipment used in this video.
Todd, so this is where you get your test results! Just foolin'.... keep up the awesome testing videos. I send people to your site all the time and I tell them to suscribe.
It’s important to keep in mind, though, that these might be factory rejects or something similar, and this particular lot might have turned good, or they might have worse specs (such as current rating) or degrade faster than normal. Further testing is needed to ascertain whether this is a good product.
very useful review, I especially appreciate no distracting music, no lengthy intro and so on ..
Great to hear! Be sure to look over my extensive video playlists for many other videos of interest to you, and most
importantly share links to my videos on social networking sites. Thanks
ruclips.net/user/electronicsnmoreplaylists
Yeah I just built a 250w ebike kit on my channel
And brought the cheapest 36v battery with good review turns out to be a good with capacity stated.
Very good video as I am thinking about getting some of these to make a large long range pack.
Yeah i am thinking about building one thanks looks quite easy. Where did you get the battery.
@@artisticdiyer2748 ebay i can't post links here will post on the video.
Thanks for watching! I'll check out your video. :-)
I have always wondered about batteries from Ali Express. Thanks for providing us with your review of these!
You're welcome! Be sure to watch the entire video. Thanks
Lion Brand LiFePo4 50Ah are showing promise. Happy Camper.
Aliexpress is just a conduit like Ebay. The important thing is which supplier you're dealing with. Would be good to get a link to the supplier for these.
@@peetiegonzalez1845 go on aliexpress search 32700 or lifepo4 and most sold are these. From the item you can go to Litokalas main store and check their other batteries out. Idk if you wanted this but for anyone reading
I've bought LiitoKala Li-ion and LiFePO4 batteries from their official store on Aliexpress and so far I've been completely satisfied. Unlike some bargain Li-ion batteries I've bought elsewhere.
Yes! Finally an actual test on these batteries and not just some random subjective thoughts and assumptions on batteries only cause they were made in China (and BTW, product manufacturing has improved in the last 30 years in China). So thank you! And thank you for all the advice on charging levels
You're welcome! Be sure to check out my battery and solar video playlists below and share. Thanks
ruclips.net/video/QjowLtMrlVI/видео.html
ruclips.net/video/B16hHEaWwpI/видео.html
About time somebody review that brand. And Chemistry in English
Thanks for sending me the link to this video.
I was impressed and surprised to see how the capacity didn't change much from 1.5A to 3.0A draw.
I see you became an affilicate of Aliexpress the next day. Congrats.
These look like great batteries to build a bank for my scooter. However, the cost of shipping Lithium batteries to Canada is not something I'm willing obrosorbe at this time.
Maybe when the world is back to normal again, the prices would come down by next spring or summer.
Very informative video. ty.
No, I became an affiliate months later. Thanks for watching!
@@electronicsNmore I went with what was written in the description at the time.
Maybe I misread it. No matter, not important.
Thanks for the video. I found it very informative.
So $4 each? That's pretty good considering the price. I might actually grab this for my ebike project later down the line. Anyway, thank you for your time to test the battery.
Yes, I ordered (4) more last night. They're on special. Thanks for watching!
This is the first video I have seen of your channel, and between the top notch video with great information and the approval from project farm, you get a sub from me. Two fantastic reasons for a sub.
Great to hear! I have many videos that cover a wide range of subjects, so be sure to look over my extensive video playlists for many other videos of interest to you. Thanks
I'm glad I found this review, thanks! It confirms that theses cell are indeed decent. I already have 120 of them :-D
Thanks for watching Pierre! I'll be doing more tests in the future.
Holy crap! The fan of that load is LOUD!
Yep. I have a replacement coming. The bearing is shot.
Logic & sensible analyzing! Someone with brains & maths skills!!! Thank you.
Glad you liked it! Thanks for the polite comment. I have many other videos that you'll greatly enjoy. Be sure to share the video links with others.
@@electronicsNmore Will do mate! Thanks!
My only issue seems to be the rather insane shipping costs to Canada. I was going to buy until i saw that. I have some smaller LiFePO4’s from Hobby King that i like. The more constant voltage during the drain cycle is a nice feature.
I had free shipping. Yes. The power drops down fairly quickly, but around 3.2V, it stays very stable for a very long time. Once it dips below around 3.05-3.1v, then the cell begins to drop off faster and faster.
I've purchased numerous 32650/32700 cells from China and have found that when capacity is stated 6000mah it's usually a good deal and the cells are good and within specs. When advertised at double that capacity, you're going to get used cells that barely manage to test at 3000mah.
thanks for the test man! Going to order some of these now
You're welcome! Be sure to watch my Tesla Model 3 2170 battery test video as well, and most importantly share. Thank you
Very good find on these batteries and a thorough review, thank you.
Glad you enjoyed the video! Be sure to share. Thank you!
I have a JMT motorcycle battery built to fit a 2005 to 2013 BMW R1200. It weighs just 2 pounds against 8lbs for the lead acid. It has built in protection against over charge and over discharging.
Capacity is just 4AH compared to the lead acid at 14AH. It sounds bad but the lead will only give significant current down to 30% discharge. The LiFePO4 can go to at least 95% before the safety circuit steps in.
Cost for the JMT was £60 so comparable to a glass mat lead acid.
The snag is LiFePO4 do not like working hard in below degs C. The good news is a heavy load quickly warms the battery and then it will keep going and going.
Let me tell you something as someone who has ordered a bunch off of aliexpress.
These are fake and of bad quality. I had LiitoKala 18650's, both LiFePO4 and Li-ion ones.
They will use fake batteries that have similar specs to original ones and while that may be fine for your low current applications like power banks if you draw higher currents they will malfunction, pose a fire threat and other interesting stuff.
Also, these have decadent performance and will lose capacity and current ratings after use.
And to make matters worse, there are tons of shops selling fake LiitoKala batteries, which are already fake.
In my personal opinion LiitoKala's may be fine if you are experienced, as you are, and know how to pick out good ones but recommending these to someone who is a little less informed could result in bad experience or worse stuff.
And to top it off, these come in different quality batches and so you may stumble onto decent quality second hand cells or you could get duds that are junk after 10 cycles.
Time will tell.
I use these in my off grid solar bank have been in use since may last year. I have had no issues so far and that's with daily cycling
10 Milli ohm internal resistance is enough info to say if they will burn out under load.
@@kevinslattery5748 10mOhm is really low, perhaps you meant something different
has anyone tried the 10000mah cells from alibaba yet? thanks for the great video test...
I saw the Tesla model 3 batteries noted in the description.
Are you aware of the design change in these where the heat ceiling is waaaay lower?
Someone could easily cause a fire with these if they were using the same techniques as with previous cells.
Not an issue in Tesla vehicles, as they have active cooling.
Man, please test if they can do 10-15a continuous discharge. Or the max your esc can draw. I would be really grateful
If enough people share and watch this video, then I'll definitely make a video.
20a constant draw would be better. Ebike battery. 15 cells = 48v
Million dollar comment
❤️❤️
Hi Doug. Another well done review. Has always I Liked and Shared. All my best.
Thanks Bobby!
Batteryhookup their brand, 32650s 6000mah for $4.
Please work on a sound loudness. Your sound is volume low, and when ads pop up, they shout as hell. That's why people rush to skip those ads.
Good review.
Thanks for the feedback. I'll make the videos louder.
Nice vid. I am building a rc boat and it needs long operation time, these seem like a amazing candidate. 4s 3p and I can go for hours!
PLENTY of power. :-)
I made my ebike battery whit theese. 37v 13ah 12s2p. I pull 25a out of it and it works really well. Going to make another one too for more power and range as my bike gets closer to moped.
Great to hear! Be sure to watch my latest video showing 15 and 20A tests on a single cell. Thanks
ruclips.net/video/hzKE4-yhRKo/видео.html
Great review :-) I wouldn't recommend full discharge ever...!
The manufacturer claims 2.5V is a safe discharge Max. Thanks for watching!
Bought a couple 11-11 (nice discount), and some more later on. Not all arrived but I got my refund later on. These batteries are very good for solar projects, they can handle overcharge very well (up to 4 Volt would not really hurt), but I have a simple protection circuit against that (cutoff at 3.7 Volt). And LED's stop drawing current if the cell goes below 2.8 Volts or so, and thus wont hurt the battery as well. And self discharge is very low as well. And the cycles! Using the 7Ah batteries and only drawing 100 mA or so will make them outlive me. Currently I am charging them with the 'left over' solar power. This is the moment of the day where the solar cells are outputting a low current, too low to put back energy in the net. At that point I start charging an array of super capacitors up to 24 Volts, and those are then discharged in a decent LiFePO4 charger. I like these batteries as they do have a high (low) resistance, that makes charging them easier (compared to LiPo). There is so much to say here .. .. .. .. ..
I don't plan on using heavy loads with these when I use them. I'll be making a video showing a 12V battery pack for my large portable spotlight, and maybe use the others for my older Milwaukee cordless hammer drill. Thanks for watching!
@@electronicsNmore Looking forward to watching this step by step project
hi after 2 years how are they doing now i want to buy some
@@ducimetierepatrick6336 I am impressed with the cells which I have (I bought a big set of used cells via ebay a year ago and am now using those). And since I recently bought a new laptop, I need even less current and so I need to think how I can use the 'left over' power for other purposes. But in winter times solar panels don't deliver much power, and I may need to switch to the original wall adapter.
If you intent on investing in batteries. you should do a new research, since Lithium and other metals are getting more and more expensive. A standard car battery may be easier to setup and perform maintenance on and is possible cheaper to buy then LiFePO4 cells with a BMS and a balancer. In my case, I went for second hand. Currently I have 5 LiFEPO4 cells from 200AH 'to be used in a project', also second hand ones. 4 is optimal, the fifth one wil be used for USB output (5 Volt via a small boost circuit) for my radio which is on all day (my radio is an old IPOD, the best internet radio since it used the least amount of power I can find anywhere: 0.5 Wat only ! ! ). The radio can run all winter on 1 of those 200AH cells.
Used 38120's can be had cheap. Use a Active balance . Other wise they walk away from each other on charge cycles.
What do you mean walk away from each other?
@@yougeo State Of Charge. Worst is when some reach the low point before cut off. Below 2.5v.
Thumbs Up. Well documented testing as usual. Thanks! Have you by any chance done a review or build on smart 120v AC switches? Looking for some inexpensive for one of my PCs to use with WOL that has external HDD docks connected which will turn on and off with booting and shutting down. Thanks!
Thanks for watching! No, never done any for that.
@@electronicsNmore If you're familiar with Hi-Fi amps, they have straight thru's and switchable receptacles on the back for connecting components so that when you power the amp they come on and then off when the amp is turned off. The straight thru's are what they sound like, always on. I know these receptacles are made somewhere, but I haven't had any luck finding an mfg. who makes them. Real handy when doing remote computer work via WOL that have external components you want to power up & down when working on systems for example. There's a lot of wi-fi switches, but I can use or need that. It must be controlled by the PC when it powers up.
Nice to see a battery that is even close to specs. Anything with fire it it's name is lucky to be half, often a third.
I agree. I stopped buying those a long time ago.
You probably don't know, but Liitokawa does not manifacture batteries.They buy and rebrand batteries like Samsung and LG
Great video! Clear and concise. Thank you!
Thanks Dave! Please share the video link and check out my wide range of videos.
Empoying 12 Nissan Modules on my Wind Turbine set up. Prismatic 50Ah LiFePo4 cells on Solar. 400Ah. They will out live me I hope.
Nice! Nissan leaf?
@@electronicsNmore Yes Sir. You know these guys I think. batteryhookup.com/collections/green-friday-weekend-deals/products/nissan-leaf-battery-module-gen-1
Thanks for doing those capacity and IR tests! Do you have any plans to test cells at their current ratings? A low-impedance cell like this would typically be used at a pretty high discharge current level and the temperature these cells reach when discharged at their claimed rating is quite important for determining if the rating is true or not.
Planning on high current tests soon. Thanks for watching!
Good vid i`m subbed now great reviews on here.
Great to hear! Be sure to rate thumbs up and share. Thanks
no link to the actual cells? >_<
In any case, thanks for doing this. Just ordered 12 cells for testing.
But you really must work on giving proper links and get rid of those nasty annoying popups.
I told everyone where I got them. Why send one seller all the business? It makes no sense, especially since they're not doing anything for me in return. Just look for sellers with very high ratings.
@@electronicsNmore Why send the seller all the business when they do nothing for me! I don't mean to sound harsh, but it's not all about you. If I see that you are posting this to help others. Then if you found a good seller with legitimate cells, then why not help others. Isn't that what it's all about.
@Al My entire life I've helped people and gotten very little in return. I have many top rated DIY appliance/repair videos that saved millions of people a fortune, I even took the time to answer countless viewer questions which I didn't have to do. Guess how many people made small thank you donation to support my work over the years? Hint, it's only double digits. Sadly we live in a society where people "expect" other to do for them, instead realizing that what they did, they didn't have top do. I supplied enough information regarding the product. Buyer comments and satisfaction ratings should help you decide.
Do you just want him to place the order for you too?
I'm looking into building one using their rectangular 50Ah batteries with the threaded posts, they look very promising since the rated output is a convenient 150A, and >2000 cycle lifespan. No welding required, now just gotta see if it'll fit in my frame.
Good luck! Thanks for watching
In my experience the 36 and 42 volt 4.4-5.6ah hoverboard battery packs are excellent for projects, and can be had for as low as $25.
After using them I would never screw around with individual cells
Different cell type. They normally use Li-ion.
@@electronicsNmore True, and they perform very well-cycle life, high discharge capability, and energy density are top notch in my experience.
@@ProlificInvention You think the cells found in the hoverboard packs have high discharge capability and energy density....and have a great cycle life?
@@ericklein5097 I mean they did pretty good running my 1.5kw eBike 20-30 miles per day.
@@ProlificInvention don’t get me wrong, most of the cells used in hoverboard packs were decent but usually were the MH1 type cells. Good capacity, medium discharge, economy cells because the MJ1’s, GA’s and 35E’s were all new to the market and so weas the 21700 so they were pricey. Now you can get MJ1’s for $4 a cell or less in bulk, $5 for P42A’s and the 2600-2800mah cells are down to $1 new/0.50 cents used. They just won’t get the same cycle life. It’s almost like you don’t see LiFe04 cells degrade because it takes a full 5-8 years to lose 20% of their capacity so they can last a quarter of your life before they truly die. And taking them down to 0.7V a cell? No big deal as long as they don’t sit there for months. Downside is the energy density sucks so not practical for a personal EV
Cool video. I m planning on build a boombox with car amplifier. My question is, will this battery power my car amplifier? Thanks.
Watch my newest video, I perform high current tests on the same 32700 cells. You need to know your power requirements, and compare them to my test results. Thanks
Awesome video, thank you.
Thank you, and you're welcome! Be sure to check out my extensive video playlists below, rate thumbs up, subscribe, and share the video link on social networking websites.
ruclips.net/user/electronicsnmoreplaylists
Another awesome video! Do you take requests on batteries? I have some Orbtronic 18650 batteries that claim 3400 mah... it would be interesting to know how they stack up to the claim...... Backpackers use these for headlamps.... they seem to hang in pretty good......
Yes. Ideally the request would need to get many likes.
Thank you for taking the time to do a great informative video. Do you know which BMS could work well for these kind of cells?
You're welcome! I'll be making a video for a 12V battery soon. I used the board below. Thanks for watching
amzn.to/37yHky2
(Amazon affiliate link)
Thank you so much for this review. I just bought 54 of these for my ebike. .5c is my intended discharge rate so this review was particularly relevant. I wonder why you did not test them at 5c?
I can only do so many tests in one video. 400mA / 1.5A / 3A was a good range. I plan on doing other tests. I take it you're going to have groups in parallel? Thanks for watching!
@@electronicsNmore Yes. 16s4p. I was thinking of trying to match internal resistance for cells in parallel. For example all the #1 cells would match but the #1 cells might not match the #2 cells. Hopefully similar cells would degrade in a similar fashion.
Thank you, very well done.
You're welcome! Glad you liked the video. Be sure to share the video link.
great video!!!....my understanding is LiFe batteries should NOT be charged at the standard and safe rate as LiPo's ( 1.5C ) ....but should be charged at at a much lower rate...example: I have been charging my LiFe PO4 1500mah at a charge rate of 1.5 amps ...is this incorrect and too high... what is the recommended charge rate formula a LiFe battery ?....thanks
It's always better to charge and discharge at a lower current rate if you're looking to maximize the life of the cell. Thanks for watching Gary! Be sure to rate thumbs up and share the video link.
@@electronicsNmore still a bit confused .....is there a general rule of thumb to follow for charging LiFe batteries....example, what would be a safe charging rate for a 2000mah LiFe battery be...thanks
@@garyvale8347 I go by what the manufacturer states when it comes to charging rates, max discharge current and voltage. Thanks
Great review and very well presented.
Thank you! Please share the video link on social media, and look over my extensive video playlists for many other videos of interest to you.
Very good review and thanks for sharing it with us :)
Glad you enjoyed it! Be sure to rate thumbs up, and share the video link on social networking websites. Thank you!
a lot could be improved in this video..
crucial one one of the them is simple timer while doing discharge test.
So basically you don't trust me. LOL
see u list big battery ... check out their 24v 3kwh battery pack... just got 3.. waiting on them to be shipped
The LittoKala store on aliexpress ships to me in California in about 1 week . Lucky me I guess
I was growing old waiting. LOL
Great review, after seeing the results of your test, will you be purchasing more of them or are you still a little unsure? Due to unknown longterm performance...
I ordered 4 more.
One suggestion: when you turn on the fan on the load: please edit the video to lower the noise, sounds terrible :)
I did lower it, it was REALLY loud. :-) Thanks for watching!
@@electronicsNmore If you record the audio with OBS, maybe requiring a stereo mic, you can adjust it low enough that you can't hear it in the output. Other studio recording software might have a similar noise cancelling feature.
Nice review! Do you have any idea how many cold cranking amps they can deliver for a motorcycle starter motor?
If the engine isn't hard to turn over, not a big engine, I think it would start it up just fine. I don't know how much CCA.
Where did you get the battery tester?
Hi Frank. Everything is listed in the video description area of this video. Thanks for watching!
Good review very informative. I just want to ask if I can use this as 4s1p battery pack for my motorcycle. Thxs
Scooter more than likely OK, but for a motorcycle use 4S2P. Thanks for watching! Be sure to share the video link with others, and check out my wide range of videos for many other videos of interest to you. Thank you
ruclips.net/video/sT-YqSyAcmE/видео.html
These seem really good for price. Great video!
Yes, I bought (4) more, I'll probably do a video showing 10A and 15A continuous current tests. Thanks for watching!
Hello, I'm about to buy 4 of these and wire them in series, what would you recommend as the best charging rate. Many thanks
Hi, love your videos, why do we get told to first charge a new mobile phone for 12 hours before use when the phone comes with over 50% charge new.
Did you charge these batteries to full capacity before you test them?
Lithium ion batteries are stored at 50%. When you buy them, you charge them fully before the first use. Yes, they were fully charged. Thanks for watching!
Would have been cool if you just did a visual compare next to an old fashioned alkaline D cell. Lilto Kala also makes a good 18650 type charger.
It's 1/8" smaller in diameter than a "D" cell, and 3/8" longer. Thanks for watching!
I wonder how these would do for making a 4S replacement sort-of hybrid car starting battery if combined with a balance board and some super caps helping with the initial needed surge? It still amazes me how well some of those little jump boxes work. Mine has saved my butt a couple times..
So many experiments, so little time. :-)
Thanks
You're welcome! Please share. Thank you
Do you find the Battery Impedance meter (SM8124) useful for measuring health of unknown (recycle bin) batteries? They're about $50 on Aliexpress. TIA
I have some cheap 18650 Westinghouse batteries. The Problem i found out with cheap Chinesium batteries is (iif you get the correct milliamp thats rated) they seem to die off after about seven or eight months and the resistance goes High
True, that's why I mentioned battery cycling in the video. Thanks for watching!
@@electronicsNmore Thanks for the video. They do look like some pretty decent batteries. Especially for the price!
I wonder how an alternator on a car behaves on a battery like this. As I understand it would need some heating pads inside and a bms that wont try and charge the batteries when they are under 0 Celsius. I presume also it would need some timer, because even if the temp sensor says the pack is over 0c after some heating the insides of the batteries would not be at the correct temperature.
LiFePO4's work very well in cars, as long as a suitable BMS is used. The LiFePO4's typically don't like being charged sub zero temps, luckily I live in warm sunny Florida. :-)
Yeah a 10A drain would be awesome at least
Coming soon. :-)
Its good to use in solar lights?
Can you show how to make a power bank with these? Please.
Coming soon. :-)
Suggestion: if you order them from China, run them under a UV lamp for a while before you unpack them, and along every stage of unpacking.
Or just spray the outside of the package with bleach or lysol.
Great video, I kinda even understand the point too. I would like to know how to make a battery to go in my van to run a 12 fridge and diesel heater. running amps is about 3 amps /hour each max. how does one build a battery for that usage, with depth of 3 days . I plan on hooking solar to charge in the future. 3ax24hrs=72 amps x3d=216 amps. That i understand, I don't understand how to take the battery and get the req 216.
You need to use a much larger battery, like the one shown in my other video below. Choose high capacity cells. Thanks for watching!
ruclips.net/video/8YGoCSleaZU/видео.html
@@electronicsNmore I found that one after, that is what I'm looking for, maybe 2 stacked for a looong camping trip! Thank you very much.
Only 1000 cycles? (the spec on the aliexpress link you provided) I thought LiFePO4's were supposed to typically provide at least 2x the charge/discharge cycles of Li-Ion cells? Is there some special factor in play with these cells?
Actually, 1000x is very good, the average person won't cycle them that many times. That's once a day for 3 years.
I might have missed it, you said the voltage was low (slightly reading wrong) on the load, have you tested that load to see if in fact the amp draw is correct?
Yes, the current draw was accurate, there was a small drop in voltage across the wires, but it had a minimal effect on the test(capacity).
Can you provide a link to batteries on aliexpress ? Great video BTW :)
Hello. Just look for a Aliexpress seller that has a very high ratings, and many satisfied buyers. Thank you
@@electronicsNmore You bought these and tested them so people want a link to the product so they know they're getting what you tested. So why don't you just publish the link in the video description instead of suggesting "a*n* Aliexpress seller that has a very high rating-s-"?
great review. i guess down to 2.5V you would get the 6500-7000 mAh range?
Hi Paul. It only adds another 100mA or so. Once it drops below 2.8v, the voltage decline really speeds up. Be sure to check out my extensive video playlists below for many other videos of interest to you, rate thumbs up, and share the video link on social networking websites. Thank you!
ruclips.net/user/electronicsnmoreplaylists
You should run them down to 2.5 volts
You'll only gain a very small amount of capacity. Once the voltage drops below 2.8, it drops fast.
Hey, these cells are available from lots of different Aliexpress stores. How can i know which are selling the 'real' ones like you tested?
Can you say which store you bought from???
liitokala Official Store
question is, can i do a direct swop say on an LED lantern or and USB FAN. Where it's connected to an 3.7v 18650 2500mah or 3000mah. then connect it to a 32650 with bms 5000mah? (excluding the physical size of 32650 is obviously bigger battery.. but charging and lifecycle and safety wize) can one do a direct swop. to get more capacity and longer lifetime for fan or LED lantern?. They both normally charge the internal battery from a 5V source via USB cable (micro usb or usb-c)
So it looks like they are actually closer to 6500mah than 7000mah
Yes
Nice video...
I Would like to replace the 12Volt 26AH lead-acid 400cca battery in my watercraft with these batteries.
I’m thinking I can get away with less capacity and get better performance...
4S x 4P will give me about 13V at about 26AH, correct? Can they handle the current?
How about making a video on how to accomplish this? Would need the managment CB board that could handle the high cranking current...
I thank many folks would be interest in a video on that subject...
I'll be doing higher current tests on these cells in the near future. You may want to wait. Thank you!
Please test the flexible cells from Alibaba.
Thin film flexible solar cells?
electronicsNmore, i have seen the flexible Lithium ceramic cells there.
Nice video. Do you know if LiFePO4 battery is safer than Li Ion? or about the same. I am trying to design battery bank for home use so safety is where I am stuck.
Yes, LiFePO4 cells/batteries are much safer. Thanks for watching! Please share the link.
You keep confusing between Li-ion battery and LiFePo4 battery. Yours seems to be a LiFePo4 which charges to 3.6v max not 4.2v. Li-ion batteries such as 18650 can be charged to 4.2v max.
No confusion. You didn't understand the video. I never said to charge to 4.2V. Did you watch the tests?? What did I charge the cells to? 3.6V.
7Amps....I need it for powerwheels 6s 0r 18v there about.
it's not bad $30 investment.
if it works out...Use it in their faster toys :-P .
Or even electric wheel chairs.You can run up to 36 volts through stock esc.
I ran a used wheel chair I got for $35 on 8s lipo 50C ...32v...or more (4.2 x 8)
Faster than STOCK 24 acid :-P
10s will work...it'll be cost effective...but mostly on Recharging time.
lithuim are lighter....it's easier on the a wheel chair
Thanks for watching! Be sure to share.
But the most important thing is LiFePos DO NOT EXPLODE AND RARELY EVER CATCH FIRE when shorted. This is why they're incredible. Just under the punch of a LiPo, tons of cycles and safer than Trump's money.
Not much risk of batterys exploding though because they dont store alot of energy like gas
@@popinmo Just easing the hype as the media loves to talk about exploding Lipos.
@@dbfcrell8300 not as much as they like to talk about school shootings i mean every single thing they talk about arent problems there just lies
Listen you can not take lithium on aircraft but NiMH do a video on good quality china NiMH cells please
Both the tsa.gov and faa.gov web sites say you are mistaken. Current rules allow up to 100 watts of any type of lithium chemistry in carry-on only, and with approval even more. Must not be in devices, but carried as batteries.
These are Lifepo4 and are the safest .No fire no explosion,longest lifespan of the battery.
At which embient temp did you test? Would be also nice to know the temp of the cells while under load...
Ambient temp was mentioned in the video. Cell temp barely changed under load. Maybe 5 deg higher.
There are even 33140 cells claiming 15Ah. Could you test them?
I'll look into it. Thanks for the suggestion!
well, they discovered recently that the best practice is 80% charge of a lithium ion battery
What's the good in supporting your channel when those products are NOT shipped to South Africa ?
Unfortunately, not every location in the world will be able to support my channel when making purchases. Thanks for watching!
I purchased some slightly larger cells - 32700 12800mAh 3.2V with studded ends only to find I can't find a charger. Can I simply modify an 18650/18700 charger perhaps with short fly leads? I'd like to charge them one at a time i.e. one in use, one on charge.
Fake rating. 32700's have a real capacity around 6000 - 7000mAh.
@@electronicsNmore I guessed as much 'cos of the price I paid. Any recommendations for single cell charger?
Think a 3s1p pack will jump start a car? I've seen small jump boxes with just 5000mah lipos in them.
For 12V, you normally use 4S.
Lipos have high discharge rate .30 C.
What are they best used for?
Many things, e-bikes, etc. Just make sure the maximum current drain stays 25-30A max. Thanks for watching!
Hi, i have miboxer c4 to and liitokala 32700. When i fully charged, it shows me approx capacity 5500mAh. I noticed that it charge mostly from 25%. Some battery started from 50% and at the end shows only 3300mAH, but voltage is normal 3.5V. Is that battery fail or miboxer shows strange numbers. How can i fully test if battery is trash?
Very informative 👍
Glad you enjoyed the video!
If I want 48v from these, by putting them in series would it be enough, that's 6k Ah each cell, I'd be drawing max 25A. Is it possible?
You can make 4S8P.
Chinese batteries with a Finnish name? 🤔
Hi sir how to differentiate or identify lifepo4 1C and 3C batterys
No way to know, find out who made the cells.
3 amps?! How do they hold up under their rated 70 amp load?
How did you arrive at 70A? They're rated 6C max, which is around 40A, and have a 30A max continuous rating. I'll be performing higher current tests soon.
@@electronicsNmore Right at the start of your video the label is nicely visible and I can see "Lii-70A" Sorry I see that's a part number, the spec sheet is something else.
10C would be really nice but even a 6C discharge would be fun. The application I have (currently using LiPo) requires peak loads of about 200Amp@48V and continuous 150A. I'd like to have about 3kwh total on board so looking at 15s X 8P on these cells.
If they hold up at continuous 30A that gives me plenty of power. 15s X 6P would even work but my run time would be shorter. Weight is a concern. 90 cells would be around 14 Kilos by the time I add wiring. That's a tad heavy. The mass energy density is less than LiPo of course. At $4.00USD a pop I'm looking at under $400! A very reasonable price for sure compared to the LiPos which are over twice that. These have a lot of other advantages over LiPos for sure.
Have to decide now if I can carry 4 more kilos for the cost savings.
I may only be able to do a 15-20A test.
Do you have a link for these batteries? Thanks
Just go to Aliexpress and look up "Liitokala LiFePO4". Thanks for watching!
The only way to increase technology is to use tubing, instead of wire, for the positive hot. Wire works for negative ground. However, this system may take 1 hot and 2 ground, termed BioCurrent
What kind of tubing will conduct electricity? Copper tubing? Would that not be the same as solid core copper wire?
@@victorreppeto7050 yes copper tubing. I have a 2" piece I spliced and crimped onto the positive lines for speakers, a couple inches away from the terminal.
And NO! It doesn't! Wire restrict, the tubing acts as an in-line acid-free capacitor
I'm no electrician so I can't properly test, but the electricity goes into the tubing, gets condensed, and projects
@@brendananderson324 much of what you say is gibberish.
While skin affect for current is a real thing, it only presents an issue at higher frequencies. The audio spectrum isn't all that high to need special wires to deal with it.
What happens at higher frequencies is the current starts to concentrate further and further to the surface of the conductor. At high current and high frequency this can present a problem as the center of the wire is not being used. Stranded wires have more surface than a solid wire and therefore in theory have higher current capability for the same gauge wire
Litz wire was developed specifically for higher frequencies having individual strands insulated from each other
This is all irrelevant for DC since it has a frequency of zero so the current flows throughout the whole conductor
Edit: for typo
@@jasonharrison25 tubing still wins
Edited*
Although they have measure for how it flows with the braided flat wire of cable tv
I don't know if it reaches the 5000% amplification of Tesla lore or not though
***
If tubing condensed the electron, that would be an exotic state of electron
@@brendananderson324 once again gibberish. I can't even understand what you are trying to say other then "tubing is better" but don't write your statements and data in an legible manner.
Ask any electronics or electrical engineer and they will likely say litz wire will win hands down. Tubing will likely only be better for high current where you can run coolant down it. Other then that it is no better then a similar gauge wire running the same current. But when running low frequencies or DC it will be worse then a solid or stranded conductor
The cells are a good value but I don't like 6400 mah cells having 7000 mah on their label.
Get used to it, they're from China. LOL